function sharePageOnFacebook() { return shareOnFacebook(location.href, document.title); }

function shareOnFacebook(pageUrl, title) {
    window.open('http://www.facebook.com/sharer.php?u=' + encodeURIComponent(pageUrl) + '&t=' + encodeURIComponent(title), 'sharer', 'toolbar=0,status=0,width=626,height=436');
    return true;
}